Thaiyur lake is located near kelambakkam, chennai. Every year during monsoons in the month of november to december, excess water flows like a water falls and provides a good oppurtunity for chennai people to enjoy with friends and family.
https://www.strava.com/activities/6499762390
When you visit chennai during rains don’t miss to visit this place. A short drive around 30 km from the heart of city will take you here.